Features

WinSteam 4.0

WinSteam provides accurate thermodynamic and transport
properties of steam and water for Windows applications using the new
IAPWS-IF97
formulations as revised in 2007. WinSteam also allows you to select
the IFC 1967 formulations for compatibility with older projects.

The steam property functions can be used directly from within
applications including Microsoft Excel, 1-2-3 and MathCad.
Add-ins attach the functions so that you can use them as if they were
built in to the applications.

This version supports 32-bit and 64-bit applications. New 64-bit
components include the steam function library (DLL), the Excel Add-in and
DeskTop Steam. The package also includes 32-bit versions of these
components plus the add-ins for 1-2-3 and MathCad.

Programmers can call the WinSteam functions from Visual Basic or Visual
C++. WinSteam also includes the stand-alone product DeskTop
Steam, an advanced steam property calculator. If you do not
need to access the steam functions from a spreadsheet, you may purchase DeskTop
Steam alone.

The WinSteam package includes various add-ins which
link the functions to many popular 32-bit and 64-bit Windows applications.
32 bit add-ins are included for Microsoft Excel Versions for Office 95, Office
97, Office 2000; Office XP, Office 2007 and Office 2010 (32-bit version); Lotus 1-2-3 97 and 1-2-3 Millennium and MathSoft Mathcad
Plus Versions 6, 7 and 8. A 64-bit add-in is included for Office 2010
(64-bit version.)

No programming is required to use the WinSteam
functions with any of these applications. Just follow a few simple steps
to load the add-in, and from then on, the functions will be available
every time you start the application. You use the functions just like any
of the built-in functions. The functions can be used in any spreadsheet
formula and any argument to the functions can be a number, a formula or a
cell reference.

All of the steam property functions are contained in a Windows Dynamic
Link Library (DLL). The WinSteam package includes
32-bit and 64-bit versions of the DLL, which supports applications designed for
Windows 95, 98, NT, 2000, XP, Vista and Windows 7. Function prototypes and LIB files are
included in the package to support Microsoft C/C++ compilers. Declaration
files are included to facilitate programming with Microsoft Visual Basic
or Microsoft Access.

The following table lists all of the WinSteam
functions currently available.

Function(Input Arguments)

Output Value

StmPT(Pressure, Unitset)

Saturation Temperature

StmTP(Temperature, Unitset)

Saturation Pressure

StmPQV(Pressure, Quality, Unitset)

Specific Volume

StmPQH(Pressure, Quality, Unitset)

Specific Enthalpy

StmPQS(Pressure, Quality, Unitset)

Specific Entropy

StmPQC(Pressure, Quality, Unitset)

Specific Heat

StmPQW(Pressure, Quality, Unitset)

Sonic Velocity

StmPQG(Pressure, Quality, Unitset)

Isentropic Expansion Coefficient

StmPQM(Pressure, Quality, Unitset)

Viscosity

StmPQK(Pressure, Quality, Unitset)

Thermal Conductivity

StmTQV(Temp, Quality, Unitset)

Specific Volume

StmTQH(Temp, Quality, Unitset)

Specific Enthalpy

StmTQS(Temp, Quality), Unitset)

Specific Entropy

StmTQC(Temp, Quality, Unitset)

Specific Heat

StmTQW(Temp, Quality, Unitset)

Sonic Velocity

StmTQG(Temp, Quality, Unitset)

Isentropic Expansion Coefficient

StmTQM(Temp, Quality, Unitset)

Viscosity

StmTQK(Temp, Quality, Unitset)

Thermal Conductivity

StmPTV(Pressure, Temp, Unitset)

Specific Volume

StmPVT(Pressure, Volume, Unitset)

Temperature

StmPVQ(Pressure, Volume, Unitset)

Quality

StmTVP(Temperature, Volume, Unitset)

Pressure

StmTVQ(Temperature, Volume, Unitset)

Quality

StmPTH(Pressure, Temp, Unitset)

Specific Enthalpy

StmPTS(Pressure, Temp, Unitset)

Specific Entropy

StmPTC(Pressure, Temp, Unitset)

Specific Heat

StmPTW(Pressure, Temp, Unitset)

Sonic Velocity

StmPTG(Pressure, Temp, Unitset)

Isentropic Expansion Coefficient

StmPTM(Pressure, Temp, Unitset)

Viscosity

StmPTK(Pressure, Temp, Unitset)

Thermal Conductivity

StmPHT(Pressure, Enthalpy, Unitset)

Temperature

StmPHV(Pressure, Enthalpy, Unitset)

Specific Volume

StmPHS(Pressure, Enthalpy, Unitset)

Specific Entropy

StmPHQ(Pressure, Enthalpy, Unitset)

Quality

StmPHC(Pressure, Enthalpy, Unitset)

Specific Heat

StmPHW(Pressure, Enthalpy, Unitset)

Sonic Velocity

StmPHG(Pressure, Enthalpy, Unitset)

Isentropic Expansion Coefficient

StmPST(Pressure, Entropy, Unitset)

Temperature

StmPSV(Pressure, Entropy, Unitset)

Specific Volume

StmPSH(Pressure, Entropy, Unitset)

Specific Enthalpy

StmPSQ(Pressure, Entropy, Unitset)

Quality

StmPSC(Pressure, Entropy, Unitset)

Specific Heat

StmPSW(Pressure, Entropy, Unitset)

Sonic Velocity

StmPSG(Pressure, Entropy, Unitset)

Isentropic Expansion Coefficient

StmTempTI(ITS-95 Temp. Unitset)

IPTS-68 Temperature

StmTempIT(IPTS-68 Temp, Unitset)

ITS-95 Temperature

StmVer()

Version and Serial Number

The Unitset argument is used to select the unit set, formulations and
other calculation options. During installation you are asked whether
you want the unit set argument to be mandatory or optional when using the
functions with Excel. We recommend that you make it mandatory and
always use the Unitset argument. If you have older Excel files in
which the WinSteam functions were used without the Unitset argument they
will return an error if you have selected to make the Unitset argument
mandatory. In this case you should make the Unitset argument
optional.

You may download a simple program that allows you to change
the Unitset argument to either Optional or Mandatory. It
will work with WinSteam versions 3 and 4.
Click Here to
download the file "SetUnitsOptional.exe". Run this file to
change the use of the Unitset argument with Excel.

When calling the functions from 1-2-3, the function name is preceded by
the "@" character, eg. @StmPTH(P,T, Units).

If you wish to try WinSteam, you may download a fully
functioning copy for a 30 day evaluation period. You may also use
this download as a replacement for a lost or damaged copy of WinSteam. If you decide to purchase WinSteam you may use the
download and we will provide you with a serial number for permanent
use. The download version is identical to the hard copy. Ordering WinSteam, via download saves you time and shipping costs.